The present invention relates to Brexpiprazole having a purity of about 99.5% or more by area percentage of HPLC, having total impurities not more than 0.5% relative to brexpiprazole as measured by area percentage of HPLC, and having less than 0.1% 1-(benzo[b]thiophen-4-yl)piperazine or a salt thereof relative to brexpiprazole by area percentage of HPLC. The present invention also provides a composition comprising brexpiprazole having 1-(benzo[b]thiophen-4-yl)-piperazine or a salt thereof in an amount less than about 0.1% relative to brexpiprazole by area percentage of HPLC and process for the preparation of brexpiprazole.
本发明涉及按HPLC面积百分比计算纯度约为99.5%或更高的布来哌唑,按HPLC面积百分比计算相对于布来哌唑的总杂质不超过0.5%,按HPLC面积百分比计算相对于布来哌唑的1-(苯并[b]
噻吩-4-基)
哌嗪或其盐的含量小于0.1%。本发明还提供了一种由布来哌唑组成的组合物,该组合物具有 1-(苯并[b]
噻吩-4-基)
哌嗪或其盐,按 HPLC 面积百分比计算,其含量相对于布来哌唑小于约 0.1%,本发明还提供了制备布来哌唑的工艺。